hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Andrew Purtell <apurt...@apache.org>
Subject OOME histogram datapoints
Date Fri, 05 Dec 2008 02:30:32 GMT
Listing any object class consuming more that 1MB heap:

Class 	Instance Count 	Total Size

>From OOME #1:

class [B 	218464 	1586472174
class java.util.TreeMap$Entry 	66290 	2717890
class org.apache.hadoop.hbase.HStoreKey 	82446 	2638272
class [C 	27979 	2500094
class [J 	228 	1822792
class [Lorg.apache.hadoop.io.WritableComparable; 	222 	1822176

>From OOME #2:

class [B 	1797666 	1509873770
class java.util.TreeMap$Entry 	559306 	22931546
class org.apache.hadoop.hbase.HStoreKey 	682715 	21846880
class [J 	264 	3154840
class [Lorg.apache.hadoop.io.WritableComparable; 	250 	3004704
class [C 	30355 	2722664 

>From OOME #3:

class [B 	1329127 	1528647389
class java.util.TreeMap$Entry 	407549 	16709509
class org.apache.hadoop.hbase.HStoreKey 	512322 	16394304
class [C 	29284 	2592440
class [J 	234 	2585992
class [Lorg.apache.hadoop.io.WritableComparable; 	229 	2585424 

>From OOME #4:

class [B 	1928882 	1363752468
class java.util.TreeMap$Entry 	575415 	23592015
class org.apache.hadoop.hbase.HStoreKey 	712688 	22806016
class [J 	359 	3937200
class [Lorg.apache.hadoop.io.WritableComparable; 	352 	3791808
class [C 	35421 	3264820 

I can provide access to the heap dumps or JHAT instances if someone would like. 

   - Andy



      

Mime
View raw message